pokemon x & y roaring skies booster box XY: Boxes Cases – Plug Complete your sealed collection with the Roaring Skies booster art set XY Roaring Skies Booster Box

Not particularly, but they are certainly worth mentioning

Combo Disruption: If your deck relies on specific combos, opponents might use disruption spells to break those combos and weaken your strategy

If the same is assumed for the lower half, there would be 72 secret rares on the sheet, with each one likely printed 3 times, thus avoiding making two of them significantly rarer than the others

And if you do happen to have a land in your hand you want to discard, then Lord Windgrace will reward you with two cards for your trouble

Brightcap Badger // Fungus Frolic

Japanese leaker BLACKeys October 1 post (297K views, 950 likes) confirms the trademark, describing it as a special set focusing on Legendary Megas from Pokmon Legends: Z-A